/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraScriptSource.h
Synchronize all source script variables that have been changed or removed from the parameter definitions to all eligible destination script variables owned by the graph.
virtual void SynchronizeGraphParametersWithParameterDefinitions ( const [TArray](API\Runtime\Core\Containers\TArray)< [UNiagaraParameterDefinitionsBase](API\Plugins\Niagara\UNiagaraParameterDefinitionsBase) * > TargetDefinitions, const [TArray](API\Runtime\Core\Containers\TArray)< [UNiagaraParameterDefinitionsBase](API\Plugins\Niagara\UNiagaraParameterDefinitionsBase) * > AllDefinitions, const [TSet](API\Runtime\Core\Containers\TSet)< [FGuid](API\Runtime\Core\Misc\FGuid) > & AllDefinitionsParameterIds, [INiagaraParameterDefinitionsSubscriber](API\Plugins\Niagara\INiagaraParameterDefinitionsSubs-) * Subscriber, [FSynchronizeWithParameterDefinitionsArgs](API\Plugins\Niagara\FSynchronizeWithParameterDefinit-) Args )